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AJ-LBX50 bare projector lamp
Fits 6 projector models from LG.
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Six different LG projectors share this one lamp: the BX401C, BX403B, BX403B-JD, BX503, BX503-JD and DX540. Rather than a separate bulb for each, LG lists the AJ-LBX50 against the whole range, and this bare version fits into the housing your projector already has.
You may also see this lamp listed as AJ-LDX5, a second code LG has used for the identical part — order under either name with confidence. Since this is a bulb only, keep your existing housing and fit the new lamp into it rather than expecting a full module.
At a glance
- Type — Bare Projector Lamp
- SKU — LA-09398
- Compatibility — 6 projector models
Common questions
Does the AJ-LBX50 fit the BX403B-JD as well as the standard BX403B?
Yes, LG lists both the BX403B and BX403B-JD as using this same lamp, along with the BX401C, BX503, BX503-JD and DX540. One AJ-LBX50 bulb covers all six models in this range.
What's the difference between AJ-LBX50 and AJ-LDX5?
Nothing in terms of the physical lamp — AJ-LDX5 is simply an alternative code assigned to the same bulb. Either part number ordered will match your BX401C, BX503 or DX540 series projector.
Is the DX540 lamp the same as the one used in the BX series?
Yes. LG shares the AJ-LBX50 lamp across the DX540 and the BX401C, BX403B and BX503 range, so a single bare bulb suits any of those projectors without needing a separate listing.
Why does one part number cover six different projector models?
LG designed the BX401C, BX403B, BX403B-JD, BX503, BX503-JD and DX540 to use a common lamp assembly, so rather than separate parts for each, the AJ-LBX50 fits them all equally well.
Since this is a bare bulb, what happens to my old housing?
You keep your existing housing and transfer the new bulb into it. This listing supplies the lamp only, not a replacement module or carrier, so no housing ships with the order.
This is a bare lamp — the bulb only. You reuse the housing already fitted in your projector.
Does the AJ-LBX50 fit the BX403B-JD as well as the standard BX403B?
Yes, LG lists both the BX403B and BX403B-JD as using this same lamp, along with the BX401C, BX503, BX503-JD and DX540. One AJ-LBX50 bulb covers all six models in this range.
What's the difference between AJ-LBX50 and AJ-LDX5?
Nothing in terms of the physical lamp — AJ-LDX5 is simply an alternative code assigned to the same bulb. Either part number ordered will match your BX401C, BX503 or DX540 series projector.
Is the DX540 lamp the same as the one used in the BX series?
Yes. LG shares the AJ-LBX50 lamp across the DX540 and the BX401C, BX403B and BX503 range, so a single bare bulb suits any of those projectors without needing a separate listing.
Why does one part number cover six different projector models?
LG designed the BX401C, BX403B, BX403B-JD, BX503, BX503-JD and DX540 to use a common lamp assembly, so rather than separate parts for each, the AJ-LBX50 fits them all equally well.
Since this is a bare bulb, what happens to my old housing?
You keep your existing housing and transfer the new bulb into it. This listing supplies the lamp only, not a replacement module or carrier, so no housing ships with the order.
Other LG lamps in the catalogue. Codes in the same family often differ by a single character, so check the part number against your old lamp before ordering.
